Gas grill



FIG. 1 is a perspective view of a gas grill showing our new design;

FIG. 2 is a front view thereof.

FIG. 3 is a back view thereof.

FIG. 4 is a right side view thereof.

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top view thereof.

Broken lines indicate boundaries of regions that are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a gas grill, as shown and described. 